migrate to semconv for otelmux #6638

[martinyonatann]

Address issue #6638

[linux-foundation-easycla]

• ✅login: martinyonatann / (a82a7eb)

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[dmathieu]

Thank you for this! ❤️

This PR does a lot more than just setup semconv.
In order to allow for better reviews, could you split it into multiple PRs?
From a first look, I'd do at least four:

• Setup the body wrapper and use it.
• Change the default span name behavior.
• Introduce the semconv package, and use it with tracing only.
• Introduce metrics support.

Striving for atomic PRs (each PR changes a single thing) makes for much speeder reviews.

[martinyonatann]

thankyou for the feedback @dmathieu ! ❤️
You're absolutely right, this PR ended up covering more ground than initially intended. i appreciate your suggestion to split it into atomic PRs for easier review. i'll get started on breaking it down into the following :

• 1. Setting up the body wrapper and using it setup and implementation of a body wrapper in otelmux #6650
• 2. Changing the default span name behavior.
• 3. introducing the semconv package and using it with tracing only. migrate to semconv for otelmux #6652
• 4. Adding metrics support.

This approach should make the review process smother and more efficient. i'll prioritize reorganizing these changes and will submit the individual PRs soon. Let me know if there are any additional points you'd like me to address.